Linear chargers utilize an inductor-less design, which extremely simplifies the BOM and shows great advantages in small-size application scenarios. By simplifying the circuit design and reducing the number of components, linear chargers can not only significantly reduce the system size, but also reduce the reliance on external components and lower the overall cost. It is especially suitable for devices with stringent space and size requirements, such as wearable devices, Bluetooth headsets, smart watches, etc., providing efficient and reliable charging solutions.